dabateman Posted July 15, 2020 Share Posted July 15, 2020 I don't know the lens formula. But if there are cemented doublets and they start to separate, then you can get an odd double image or glow. That can be why you see it in one sample. Link to comment
ulf Posted July 16, 2020 Author Share Posted July 16, 2020 I am rather certain the "glow" is mostly a stacking artefact from out of focus image parts.If I had used a tighter longer stack and much more retouching in Zerene that might have been improved a bit.As it also lacks AR-coating ther is likely some flare caused by the different lens surfaces. In the stack it did not look like local parts of the flower moved much, "breathing".The total time for taking the stack was less than 90s. The Milar is a simple triplet without any cemented groups.It is a very old design. Link to comment
ulf Posted July 16, 2020 Author Share Posted July 16, 2020 The visual image is taken with a few decades younger lens. I got the Milar last week. Link to comment
Andrea B. Posted July 16, 2020 Share Posted July 16, 2020 Thanks for the additional input on the stacking details. I really hope to see more such work from you. I have not yet been able to acquire the patience required for shooting a stack and working with Zerene Stacker. I really would like to try it though. Link to comment
Andrea B. Posted December 8, 2020 Share Posted December 8, 2020 Update: Ulf, I have placed a header in the first post so that it fits our botanical format. This is needed for the Index algorithm. Link to comment
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